OK, I found it. It was under account settings. My next question is I am not sure exactly what goes in these fields. <container-name>@<storage-account>.dfs.core.windows.net/<path>'. Container-name, storage account, and path. I think storage-account would be the name of the data lake such as datalake4.dfs.core.windows.net and maybe the path is /folder. But container I am not sure. I am new to data lakes.